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(A) Schematic illustration of the TCA cycle. (B, C, and D) Phylogenetic reconstructions based on the succinate dehydrogenase iron sulfur protein (B), malate dehydrogenase (C), and aconitase (D) from representative species. The phylogenetic trees were constructed as described by Karlberg et al. (95). gly,glycosome; per, peroxisome; cyt, cytosol; chl1 and chl2, chloroplast 1 and 2, respectively; mit, mitochondrion.
